Ahmed Hashim Kareem. Critical Buckling Loads in Functionally Graded Beams: Comparative Analysis Using Various Beam Theories. Rafidain J. Eng. Sci. [Internet]. 2025 Jun. 19 [cited 2026 May 7];3(2):12-26. Available from: https://rjes.iq/index.php/rjes/article/view/206